The Glasi Hergiswil is a Swiss factory that manufactures glass, located in Nidwalden, Switzerland. It was founded by the brothers Siegwart in 1817.
Because of old machines and technology, the Glasi was threatened to be closed. However, due to the efforts of the community, the factory remains open and now offers visitors the opportunity to observe workers as they produce the glass. The Glasi also has a museum and is home to the first glass labyrinth in Switzerland.